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</head><body lang="EN-US" link="blue" vlink="purple"><div dir="auto">I have found it more useful to cover as much of the tlud opening as possible with a solid disc some what less in diameter than the diameter of the TLUD. This does two things:<br><br></div>
<div dir="auto">1. Makes the TLUD as close as possible to a retort;<br><br></div>
<div dir="auto">2 Forces the pyroysis gases to the edge where it meets the incoming secondary air.<br><br></div>
<div dir="auto">I note that the fan assisted blue flame stoves in Asia place the holes in the top plate at the outer edge of the plate, not in the center.<br><br></div>
<div dir="auto"><!-- tmjah_g_1299s -->Jock Gill<!-- tmjah_g_1299e --><br></div>
<div dir="auto"><!-- tmjah_g_1299s -->P.O. Box 3<!-- tmjah_g_1299e --><br></div>
<div dir="auto"><!-- tmjah_g_1299s -->Peacham, VT 05862<!-- tmjah_g_1299e --><br><br></div>
<div dir="auto"><!-- tmjah_g_1299s -->Cell: (802) 503-1258<!-- tmjah_g_1299e --></div>
<div class="gmail_quote" >On Mar 28, 2019, at 9:58 AM, "Anderson, Paul" <<a href="mailto:psanders@ilstu.edu" target="_blank">psanders@ilstu.edu</a>> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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<p class="MsoNormal">Julien, (and to the Stoves Listserv, and for posting at my website
<a href="http://www.drtlud.com/eposts">www.drtlud.com/eposts</a> )</p><p></p>
<p class="MsoNormal"></p><p> </p>
<p class="MsoNormal">Interesting. </p><p></p>
<p class="MsoNormal">Are the nozzles with slanted walls (like in a funnel) or with straight sides? What diameters at each end for what sized of TLUD gasifiers?</p><p></p>
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<p class="MsoNormal">Paul</p><p></p>
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<p class="MsoNormal">Doc / Dr TLUD / Paul S. Anderson, PhD</p><p></p>
<p class="MsoNormal">Exec. Dir. of Juntos Energy Solutions NFP</p><p></p>
<p class="MsoNormal">Email: <a href="mailto:psanders@ilstu.edu"><span style="color:#0563C1">psanders@ilstu.edu</span></a> Skype: paultlud</p><p></p>
<p class="MsoNormal">Phone: Office: 309-452-7072 Mobile: 309-531-4434</p><p></p>
<p class="MsoNormal">Website: <a href="http://www.drtlud.com"><span style="color:#0563C1">www.drtlud.com</span></a>
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<p class="MsoNormal"><b>From:</b> Julien Winter <winter.julien@gmail.com> <br>
<b>Sent:</b> Thursday, March 28, 2019 8:31 AM<br>
<b>To:</b> Norman Baker <ntbakerphd@gmail.com><br>
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<p class="MsoNormal">Hi Norm; </p><p></p>
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<p class="MsoNormal">Instead of a concentrator ring, try a nozzle. A nozzle brings the burning gases together without the shape edges of a concentrator ring. The sharp edges could generate soot. A nozzle has smooth edges. TLUD nozzles are being manufactured,
but they are being misused!! People are turning them upside down and using them to load mason jars with food. So, you can find TLUD nozzels on the shelves for food canning supplies in hardware stores.</p><p></p>
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<p class="MsoNormal">The reason why I got into the stove burner design business about five years ago was because when I used concentrator rings, I got deposits on the bottom of pots.</p><p></p>
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<p class="MsoNormal">Cheers,</p><p></p>
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<p class="MsoNormal">Julien.</p><p></p>
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<p class="MsoNormal">On Thu, Mar 28, 2019 at 1:47 AM Norman Baker <<a href="mailto:ntbakerphd@gmail.com">ntbakerphd@gmail.com</a>> wrote:</p><p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Tahoma",sans-serif">Paul;<br>
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I assume you mean the diameter of the stack or combustor? In prior tests with concentrator rings, a whole that has a diameter of 70% of the stack seem to be adequate. Lately, I have been going to about an 80% diameter. In one publication I read the stack diameter
should be at least 60% of the feedstock barrel diameter. Otherwise the time needed for gases to exit the combustor became too fast and hence too short for complete combustion. Is this your experience? And how about the rest of you chiming in on this.</span></p><p></p><p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Tahoma",sans-serif">Norm</span></p><p></p><p></p>
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<p class="MsoNormal">On Wed, Mar 27, 2019 at 8:05 PM Anderson, Paul <<a href="mailto:psanders@ilstu.edu" target="_blank">psanders@ilstu.edu</a>> wrote:</p><p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Norm,</p><p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p><p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">In general, the diameter of the hole is about half of the diameter. But there might not be any visible (noticeable) impact if reduced or enlarge 10 to 20% of the size of the
hole. Trial and error are your best bets to get this refined. </p><p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I look forward to hearing of your results.</p><p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p><p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Paul</p><p></p>
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